>From the pppd man page:
holdoff n
Specifies how many seconds to wait before re-initi-
ating the link after it terminates. This option
only has any effect if the persist or demand option
is used. The holdoff period is not applied if the
link was terminated because it was idle.
The holdoff option used to be applied even if the idle limit was hit. Why
was this changed and when did it change?